actually the old macbook pros had an extra spot for a 2nd cpu if you research into the arcitecture of the board itself and if you know the program iceclean i will be posting screen shots of what it says this system is and yes the total cost of the laptop when it was built was around 12k or more but i am looking to get maybe 3k as i am in need of money. also if neccessary i will remove the keyboard and show you were the 2nd cpu was soldered on but i will not simply just do this inless someone is serous about making me an offer as i am not the original builder of this computer and do not want to keep removing the keyboard but i will prove it if need be